Okay, my gecko girls (Geiko, Kitty, and Tigger. Joker and Harley are maintaining their weight, but they are adults) are not putting on much weight. They get plenty of CGD and a couple crickets now and then but they are not gaining any weight. They eat! They are not skinny! They are not starving! No weight gain, no growing bigger, I think i have a pigmy form of Crested Gecko!!! Any pointers would be appreciated!!! LOL maybe bacon wrapped crickets hehehe

You house your cresties in groups, right? Maybe try moving the girls into individual enclosures, upping the heat a teensy bit, and try something a bit meatier than crickets? That's all I've got, though. All I know about cresties is what I've read so far. =P

Uh... Have the company assemble a strip for you and tape it to the wall behind the tanks? I guess. That's kind of what I'm doing for my corn snake hatchling rack, only on the back of the bookcase. Reptile Basics Inc sells Flexwatt and will assemble it free. If you do it, don't forget a thermostat or rheostat so things don't get too warm.

You can use heat tape on the back of your enclosures (not the floor since they are arboreal) and hook it into a thermostat (even a cheap one will do) set to 76F or whatever you want that isn't too hot. I'd also recommend seperating them for a bit and seeing if that helps. It is really easy to make your own heat tape "heat pads". All you need is the heat tape, some clips for crushing/holding the cord into the heat tape, and an extension cord for the cord. I found my clips at Lowe's, I don't know what they are called but they are blue. I could send you a pic of them if you needed and the final product. Oh and I wrap the clip/wire/heat tape where they meet with electrical tape to be safer. Works a charm. Good luck.

I've found that just an incandescent bulb on top of the crestie enclosures really helps w/ the temperature.

And I agree w/ trying to seperate them. I had my 2 girls together, and one stopped growing and the other started getting fat rolls....so I seperated them. The smaller one is now growing into her adult size, and the fat one is becoming less fat. ;)

You may also want to consider feeding a round of Repashy Entomoeba Fix and Nematode Fix. It's just like the CGD, but it gets rid of parasites.

I use a 75 watt red heat light on top of my cage and that seems to help with the temps, as long as the heat doesn't go above 80 degrees they will be fine. You can also try gut loading your crickets, I feed my crickets CGD for at least a week before I feed them to my geckos. And I usually feed them crickets 3 times a week alternating CGD in between feedings. Also I noticed you didn't mention how much your geckos weigh. An adult gecko should weigh about 40 grams, sometimes less, sometimes more. Getting to this weight takes time too.. my geckos have been gaining weight at around 1 to 2 grams a month if I'm lucky. For instance, one of my geckos weighed 7 grams last February and I just weighed the same gecko a couple of days ago and he weighed 28 grams. So it took him 9 months to gain 21 grams. Another thing, if your housing the geckos in groups, you need to have multiple feeding dishes in the cage. Sometimes a gecko might declare a feeding dish as theirs and not let any other geckos feed from it.
You can also try feeding the geckos Phoenix worms or their called calci worms sometimes. But my geckos won't take worms but I've seen others that will. If your really desperate to fatten them up you can feed them wax worms, but thats not the greatest feeder insect because they are so high in fat content that most people believe they are not healthy for the animals.

Yes i have multiple feeding dishes in the tank with Kitty and Geiko. Geiko has MBDcaused from a babyfood diet at petco, an was to weak to eat on her own so i was seringe feeding her for a bit. I wonder if she was spoiled. Kitty seems to be maintaining the same weight just not growing! Last weigh in they were both around 8 grams and i have had them since late June. But i see the point about seperating them. As soon as i seperated Tigger she started to fattin up. Okay guys thank you and its seperate living spaces.

I've used wax worms to fatten up juenile Leos. I think it's fine as long as you don't over-do it on the wax worms and also make sure they are still eating other items. My juvie Leos usually get a mix of crickets small roaches and wax worms.

Waxworms rock! As do butterworms and phoenixworms. But like John said, dont over do it. I had a leo that only ate waxies and when i tried to wean her off, she shed every day until she died of starvation.